linux fix file system

bad /etc/fstab How can I save changes during fix file system FEDORA

location: linuxquestions.com - date: August 9, 2008
I modified /etc/fstab and now my system will not boot. When I boot, I get an error during file system check. During boot, when I get the error, I have the opportinity to get to root to fix the filesystem.
When I try to fix the problem by editing /etc/fstab, when I try to save changes (:w!) to /etc/fstab e212 can't open file for writing. Any suggestions for how I can save the needed changes?
Thanks,
John

Free and Open Source Windows & Linux Journaling File System

location: ubuntuforums.com - date: December 29, 2008
Does anyone know if there is a Free and Open Source Journaling File System that works 100% on both Windows and Linux? The ext2 driver totally ignores ext3's journal.

location: linuxquestions.com - date: July 24, 2009
I have a triple-boot computer: OS-X, Windows 7 and FC 11. I predominantly use OS-X, which doesn't understand Fedora's ext4 file format. Everytime I boot up I am greeted with a window telling me OS-X couldn't mount the disk and asking if I want to Initialize, Ignore or Eject the disk!
Obviously, I don't want it to initialize my Linux drive, so I've been taking turns ignoring and ejecting. What I'm looking for is a way to permanently tell OS-X to ignore the drive.
Thanks in advance for any suggestions.

Doubts About the Linux Root File System

location: linuxexchange.com - date: January 1, 1970
In my understanding, the term 'root file system' is ambiguous, it actually refers to two different things. One is the absolute minimal file system needed to accomplish system setup together with the kernel. It contains some early user space programs which perform hardware detection, module loading, device discovery and so on. This file system is often referred to as 'rootfs'. The other is the 'real' root file system. It may locates on a local disk or on a remote server (for systems that support boot from ethernet).
I've explored several Linux Distros using 'mount' command. Some have 'rootfs on / type rootfs' in the result, while others don't. And all of them have something like '/dev/sdaX on / type extX'.
I'm wondering whether the mechanism has changed or the rootfs is just unmounted for those that don't have 'rootfs on / type rootfs'.
I've tried to seek the answer by wiki and google, but ended up more confused.
Can anybody help me?

Questions about the linux ext4 file system

location: ubuntuforums.com - date: August 6, 2010
I'm trying to figure out why files in linux are oriented in the folders the way they are. In Windows it's much simpler to picture. You have program files (C:\Program Files(x86), system files (C:\Windows), user settings for programs or personal stuff(C:\User), and some weird folder names. I was noticing that the Ubuntu ext4 filesystem is a little more complicated. Some folder names are self explanatory, but others are not. Is there a guide, or some reading material on the history of the linux filesystem and how it morphed into what is presently used in Ubuntu?

location: ubuntuforums.com - date: October 15, 2012
Hi,
I am wondering if there is a Linux application that can fix a file corruption issue I have. It is a FAT system on an SD card that I use in my digital camera.
The directory structure is still intact but when I try to enter into a directory with files through dolphin or thunar etc I get an input/output error.
If I navigate to the directory in terminal and run ls I get loads of lines with similar message
ls: cannot access /2M^iğL.▀m!: No such file or directory
I have tried running testdisk on it and also ddrescue but I cannot resolve the issue. Has anyone come across this before and is there a way to fix it?

How to check NTFS file system in Linux ??

location: linuxquestions.com - date: May 29, 2009
Hi,
Is there any command in Linux to check NTFS file system; like fsck.vfat?
Regards

How to fix: error:unknown file system grub rescue?

location: ubuntuforums.com - date: February 24, 2012
Hi i new in this, a have install for first time lubuntu 11.04 it was OK but, in win xp i format H: disc, it was empty. Then when i turn computer on these message appears: Verifying DMI Pool Data Boot from cd: error:unknown file system grub rescue. How to fix this problem, please help???